function columns(vm) {
    const cols = [
      {
        dataIndex: 'zb',
        align: 'center',
        // fixed:'left',
        width:180,
        slots: { title: 'customTitle' },

      },
      {
          title:'任期增减(±)%',
          dataIndex:'zf',
          align: 'center',
          // fixed:'right',
          scopedSlots: { customRender: 'zf' },
          width:200
      },
      {
        title:'任期增减(±)万元',
        dataIndex:'mzf',
        align: 'center',
        // fixed:'right',
        scopedSlots: { customRender: 'mzf' },
        width:200
      }
    ]
    return cols
  }
  
  export default columns